Automatic train-stopping means



G. CHROMY, DECD.

J. CHROMY, ADMINISTRATOR.

AUTOMATIC TRAIN STOPPING MEANS. APPLICATION FILED -AUG.I9, 191s.

Patented July 18, 1922.

2 SHEETS-SHEET 1.

G. CHROMY, DECD.

1.CHROMY,ADM1NISTHATOR.

AUTOMATIC TRA N STOPPING MEANS.

Patented July 18, 192 2.

2 SHEETS-SHEET 2- APPLICA'IION FILED A UG-IQI 1918.

gvwehtoz Q ifs: I I I dhrovny sates GEORGE CHROMY, OF STEWART, MINNESOTA; JosEr H CHROMY ADMINISTRATOR or PATENT orrics;

sAIn GEORGE CHROMY, nEoEasED.

AUTOMATIC TRAIN-STOPPING MEANS.

Specification of Letters Patent.

Application filed August 19, 1913. Serial no. 250,567.

an improved equipment appurtenant to each tram and preferably located in thelocomdtive cab and constructed and arranged to be set in motion by the presence of another train headed in the opposite direction in the same section or block, and when so set in motion to mechanically effect movement'of the engineers brake valve and the throttle valve, the former to apply the brakes and the latter to cutoff the means of propulsion.

Manifestly my. novel equipment is adapted to operate automatically and is not dependent in any manner upon the vigilanreof the locomotive engineer or a member of the crew on either train, and with the foregoing in mind the best practical embodiment of my invention that I have as yet devised will be fully understood from the following description and claim when the same are read in connection with the drawings accompanying and forming part of this specification, in which:

Figure 1 is a view diagrammatic in character and illustrating two blocks or sections of track, and two locomotives bearing my novel equipment.

Figure 2 is a transverse section taken through the track and showing the conductors alongside the track rails and also showing the brushes or trolleys through the medium of which electric current is transmitted from the conductors into the locomotive cab and vice versa.

Figure 3 is an enlarged side elevation showing the equipment in one locomotive cab.

Figure 4c is a top plan View of the same.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

In furtherance of my invention I arrange alongside and preferably at the outer side of each track rail 1, a section 2 of w re, or any other material. well adapted for the transmission or carriage of electric current.

Eachwire or conductor 2 is a mile in length Patented July 18, 19232.,

or of any other suitable length according to the length that it is desired for each safety block orsection to have, and the contiguous ends of the adjoining conductor 2 are thoroughly insulated from each other,

as indicated by 3, and each conductor 2 is moreover effectively insulated or electrically isolated from the ground and also from the adjacent track rail.

Carried by each locomotive cab are current collectors 4:, there belngone of such collectors at each side of the cab, and each collector 4 being provided at its lower end a with a trolley 5 or a suitable brush or other device adapted to travel on the adjacent conductor 2 in electric contacttherewith.

The currentcollectors 4 of each locomotive equipment are arranged in a. normally interrupted electric circuit with a sourceof electrioenergy 6, and a. suitable electromechanical circuit closing device shown in Figure 1. s v Vhen two trains equipped with my 1111- provements are approaching each other on the same block or section of track, current will pass from the plus-pole of the source of energy, 6 in one cab, to the collector l and thetrolley 5 thereof, then through one of the conductors 2, then through the trolley 5 and collector t at the same side of the other cab, then through the relay 17 of the latter cab. and the battery 6 thereof, then through the other collector land trolley 5 of said cab; then through the other conductor 2 and then through the trolley 5 and collector 4 of the first named cab and the relay 7 therein to the opposite sideof the first named source of energy 6. It will be understood in this connection that the batteries 6 have different poles opposed to each other. lVhen said approach takes place the electro-magnets or analogous electro-mechanical devices in each locomotive equipment will be energized to attract an armature 8, and the said armature will serve to close a major electric circuit in each cab so as to move the throttle lever and the engineers valve in the cab and thereby automatically bring about a stoppage of the train.

The brake applying and power controlling equipments of the two locomotives are similar in construction and therefore a detailed description of the single equipment shown in Figures 3 and i l will. suffice to impart a definite understanding of both. Referring therefore, to Figures 3 and i, 9 is a Source oi elect may be a dynamo, or any other means for furnishing an adequate supply of current. 10 is a motor arranged in a normally interrupted circuit with the source of energy 9; the said circuitbeing adaptedto be closed by the switch 11 actuatable bythe be'tfore mentioned armature T. lZis a capstano'r Winding shaft connected through, gearing with the motor 10. 13is a cable connected to and designed tobe Wound upon the shaft 16, and through the inedium' oi"- the said cables move the engrneefis valve to apply the brakes, and the lever 17 to-shut off the supply of steam to the engine. It Willalso be understood that because oi the flexible character of the cables 13 and 16, the said cables will not interfere in any"measur'e with the ordinary manual operation of the engineers valve and the throttle. further be appreciated that my novel cab equipment is simple, inexpensive and com pact in construction, and that it is adapted to bereadily installed in a locomotive cab suchas at present in use Without material alteration of the cab or the devices usually tic energy Which It will employed as appurtenances of the engine and the brakes,

Animportant characteristico'f my inven tion resides in the fact that it is operated automatically to stop both trains in the contingency stated Without any attention What-- intertere in any measureivith the operationof trains forth.

Having described my invention What I claim and desire to secure by Letters Patent is:

In the means described for stopping a except i in the contingency set train,the combination of a railway track, l

electric conductors arranged alongside the traclrrails, and a tramequipment comprising a normally interrupted circuit in which the said conductors anda circuit closer are interposed; said circuitbeing adapted to'be completed g vvhen asimilarly equipped tpam runm ng'nran opposite direction 1S111 can gerous proximity on the track, a source of electric energy and an electric motor arranged in a normally*interrupted circuit" including said circuit closer, whereby said motor circuit will be completed by the cir-' cuit closer on theclosing of the first-named 5 circuit, and means operable by-the electric motor lior manipulating an engineers valve and a tln'ottle"lever to stOp'thetrain; and

including a'single Windingfshaft and cables directly connecting said shaft with the e11 gineersvalve and the throttle lever in testimony whereof I afiix. my signature. 

